Thunderstorm over the Grand Canyon (Arizona). View from Mather Point in the National Park at 7,000 feet. Lightning, as the harbinger of rain, was stylized as a zig-zag line on southwestern pottery and in petroglyphs.
Thunderstorm over the Grand Canyon (Arizona). View from Mather Point in the National Park at 7,000 feet. Lightning, as the harbinger of rain, was stylized as a zig-zag line on southwestern pottery and in petroglyphs.